Transient Voltage-Reactive Power Modeling of Offshore Wind Power Collection and Transmission System with AC Cables and Characteristic Analysis

The transient overvoltage at the sending terminal of the offshore wind power collection and transmission system with AC cables threatens the safe and stable operation of the system. To quantitatively analyze the impact of transient voltage on offshore wind turbines and thereby guide the configuratio...

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Main Authors: Yanxia SUN, Shiwen FANG, Zhen LI
Format: Article
Language:zho
Published: State Grid Energy Research Institute 2022-04-01
Series:Zhongguo dianli
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Online Access:https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202101108
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author Yanxia SUN
Shiwen FANG
Zhen LI
author_facet Yanxia SUN
Shiwen FANG
Zhen LI
author_sort Yanxia SUN
collection DOAJ
description The transient overvoltage at the sending terminal of the offshore wind power collection and transmission system with AC cables threatens the safe and stable operation of the system. To quantitatively analyze the impact of transient voltage on offshore wind turbines and thereby guide the configuration of the voltage-reactive power control system for offshore wind power, we need to develop a transient voltage-reactive power model of the offshore wind power collection and transmission system with AC cables as soon as possible. This paper approaches this problem by analyzing the characteristics of the equivalent network of the transmission system considering AC cables and clarifying the boundary conditions for the equivalent network to demonstrate inductive characteristics or capacitive ones. Then, for the case of the equivalent network displaying capacitive characteristics, we build a mathematical transient voltage-reactive power model of offshore wind power considering AC cables and verify the validity of the mathematical model on the control hardware in the loop (CHIL) based real-time simulation experiment platform. Finally, with the transient voltage-reactive power model of offshore wind power, we quantitatively analyze the influences of AC cable line length and the control bandwidth and damping ratio of the current loop in the wind turbine grid-side converter (GSC) on transient overvoltage at the generator terminal to lay a theoretical foundation for quantitatively assessing the risk of transient overvoltage in the offshore wind power collection and transmission system with AC cables.
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publisher State Grid Energy Research Institute
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spelling doaj-art-cda03adf16284e0083a99da23e897f9b2025-08-20T02:56:52ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492022-04-0155416617410.11930/j.issn.1004-9649.202101108zgdl-55-3-sunyanxiaTransient Voltage-Reactive Power Modeling of Offshore Wind Power Collection and Transmission System with AC Cables and Characteristic AnalysisYanxia SUN0Shiwen FANG1Zhen LI2State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems (China Electric Power Research Institute), Beijing 100192, ChinaSchool of Automation, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Automation, Beijing Institute of Technology, Beijing 100081, ChinaThe transient overvoltage at the sending terminal of the offshore wind power collection and transmission system with AC cables threatens the safe and stable operation of the system. To quantitatively analyze the impact of transient voltage on offshore wind turbines and thereby guide the configuration of the voltage-reactive power control system for offshore wind power, we need to develop a transient voltage-reactive power model of the offshore wind power collection and transmission system with AC cables as soon as possible. This paper approaches this problem by analyzing the characteristics of the equivalent network of the transmission system considering AC cables and clarifying the boundary conditions for the equivalent network to demonstrate inductive characteristics or capacitive ones. Then, for the case of the equivalent network displaying capacitive characteristics, we build a mathematical transient voltage-reactive power model of offshore wind power considering AC cables and verify the validity of the mathematical model on the control hardware in the loop (CHIL) based real-time simulation experiment platform. Finally, with the transient voltage-reactive power model of offshore wind power, we quantitatively analyze the influences of AC cable line length and the control bandwidth and damping ratio of the current loop in the wind turbine grid-side converter (GSC) on transient overvoltage at the generator terminal to lay a theoretical foundation for quantitatively assessing the risk of transient overvoltage in the offshore wind power collection and transmission system with AC cables.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202101108offshore wind powerac cabletransient overvoltagemathematical modelreal-time simulation
spellingShingle Yanxia SUN
Shiwen FANG
Zhen LI
Transient Voltage-Reactive Power Modeling of Offshore Wind Power Collection and Transmission System with AC Cables and Characteristic Analysis
Zhongguo dianli
offshore wind power
ac cable
transient overvoltage
mathematical model
real-time simulation
title Transient Voltage-Reactive Power Modeling of Offshore Wind Power Collection and Transmission System with AC Cables and Characteristic Analysis
title_full Transient Voltage-Reactive Power Modeling of Offshore Wind Power Collection and Transmission System with AC Cables and Characteristic Analysis
title_fullStr Transient Voltage-Reactive Power Modeling of Offshore Wind Power Collection and Transmission System with AC Cables and Characteristic Analysis
title_full_unstemmed Transient Voltage-Reactive Power Modeling of Offshore Wind Power Collection and Transmission System with AC Cables and Characteristic Analysis
title_short Transient Voltage-Reactive Power Modeling of Offshore Wind Power Collection and Transmission System with AC Cables and Characteristic Analysis
title_sort transient voltage reactive power modeling of offshore wind power collection and transmission system with ac cables and characteristic analysis
topic offshore wind power
ac cable
transient overvoltage
mathematical model
real-time simulation
url https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202101108
work_keys_str_mv AT yanxiasun transientvoltagereactivepowermodelingofoffshorewindpowercollectionandtransmissionsystemwithaccablesandcharacteristicanalysis
AT shiwenfang transientvoltagereactivepowermodelingofoffshorewindpowercollectionandtransmissionsystemwithaccablesandcharacteristicanalysis
AT zhenli transientvoltagereactivepowermodelingofoffshorewindpowercollectionandtransmissionsystemwithaccablesandcharacteristicanalysis